<?php
/**
 * Smarty shared plugin
 * @package Smarty
 * @subpackage plugins
 */
/**
 * escape_special_chars common function
 *
 * Function: smarty_function_escape_special_chars<br>
 * Purpose:  used by other smarty functions to escape
 * special chars except for already escaped ones
 * @author   Monte Ohrt <monte at ohrt dot com>
 * @param string
 * @return string
 */
function smarty_function_escape_special_chars ($string)
{
    if (! is_array($string)) {
        $string = preg_replace('!&(#?\w+);!', 
        '%%%SMARTY_START%%%\\1%%%SMARTY_END%%%', $string);
        $string = htmlspecialchars($string);
        $string = str_replace(array('%%%SMARTY_START%%%', '%%%SMARTY_END%%%'), 
        array('&', ';'), $string);
    }
    return $string;
}
/* vim: set expandtab: */
?>
